1455283840 has 64 divisors (see below), whose sum is σ = 3591313920. Its totient is φ = 563328000.

The previous prime is 1455283811. The next prime is 1455283849. The reversal of 1455283840 is 483825541.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1455283793 and 1455283802.

It is not an unprimeable number, because it can be changed into a prime (1455283849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16836 + ... + 56515.

It is an arithmetic number, because the mean of its divisors is an integer number (56114280).

Almost surely, 2^1455283840 is an apocalyptic number.

1455283840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1455283840 is an abundant number, since it is smaller than the sum of its proper divisors (2136030080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1455283840 is an equidigital number, since it uses as much as digits as its factorization.

1455283840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73401 (or 73389 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 1455283840 is about 38148.1826565827. The cubic root of 1455283840 is about 1133.2243616871.

The spelling of 1455283840 in words is "one billion, four hundred fifty-five million, two hundred eighty-three thousand, eight hundred forty".